https://doi.org/10.1140/epja/i2010-11001-6
Regular Article - Experimental Physics
High-spin states and a new band based on the isomeric state in 152Nd
1
Department of Physics, Tsinghua University, Beijing, 100084, PRC
2
Department of Physics, Vanderbilt University, Nashville, TN, 37235, USA
3
Department of Physcis, Shanghai Jiao Tong University, Shanghai, 200240, PRC
4
Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
5
Department of Physics, Mississippi State University, Mississippi State, MS, 39762, USA
Received:
15
January
2010
Revised:
22
April
2010
Accepted:
10
June
2010
Published online:
6
July
2010
High-spin states of the neutron-rich 152Nd nucleus have been reinvestigated by measuring the prompt -rays in the spontaneous fission of 252Cf . The ground-state band and a side negative-parity band have been updated. A new band based on the 2243.7keV isomeric state has been identified. The half-life for the isomeric state has been measured to be 63(7)ns. The projected shell model is employed to study the band structure of this nucleus. The results show that the calculated levels of the bands are in good agreement with the experimental ones, and the isomeric state and the negative-parity band are based on the proton
5/2-[532] ⊗
9/2+[404] and neutron
3/2-[521] ⊗
5/2+[642] two-quasiparticles configurations, respectively.
© SIF, Springer-Verlag Berlin Heidelberg, 2010